Denver to Seattle
DENSEA
Fly from Denver to Seattle starting at USD 97 with Frontier Airlines.
Best fare available on Jun 8, 2026.
Limited seats. Better plans. Book before it's gone.
Denver to Seattle cheapest flights this week
Denver to Seattle monthly flight fare trend
May
from USD 103
Jun
from USD 97
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Airport Details
Origin
Denver
Denver International Airport (DEN)
Denver, DEN
Zone
Denver
Elev
5431 ft
Destination
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
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